- Posts: 207
- Joined: Fri Mar 28, 2008 7:38 am
- Location: New Orleans, Louisiana
How did they get there? Why would chalk be associated with the granitic core of the mountain? How is it related to the hot springs? It would be easily eroded
Talking to Chris and Nora at the St Elmo General Store - they said it was not chalk but instead a granite with the feldspar eroded
Sure enough - the white color is nearly all quartz with the hydrothermal hot springs leaching out the other minerals in a halo kinetic zone.
The area is called Chalk Creek but there is no chalk.
this is quite an interesting geologic enigma
Wish I had grabbed a sample and walked the contact on my way out but we were in a hurry to catch a flight
- James Dziezynski
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- Location: Boulder, CO
- Posts: 1918
- Joined: Thu Apr 12, 2007 12:57 pm
- Location: Here, Now
"Please use the comments to demonstrate your own ignorance, unfamiliarity with empirical data and lack of respect for scientific knowledge. Be sure to create straw men and argue against things I have neither said nor implied. If you could repeat previously discredited memes or steer the conversation into irrelevant, off topic discussions, it would be appreciated. Lastly, kindly forgo all civility in your discourse . . . you are, after all, anonymous." Barry Ritholtz
- Posts: 1665
- Joined: Fri Mar 14, 2008 12:47 pm
- Location: St. Louis, MO
Dex wrote:When I go for a hike I always wonder how the earth features were formed.
Enquiring minds want to know, huh Dexie?
I would have thought that as a "lord of the Sawatch" you would have known all there was to know about the only hood you could be expected to know anything about. Guess you're not as omniscient as you think you are.
Hunter S Thompson
- Posts: 668
- Joined: Mon Aug 13, 2007 12:35 am
- Location: Wyoming
James Dziezynski wrote:Cool. And thank goodness for Wikipedia Does that imply that there's more geothermal activity under Princeton than just the hot springs?
Not sure what you're getting at...? In the northern Rockies (Idaho), hot springs in areas of granite are caused by radioactive decay (the decay process releases heat which heats the water which rises to the surface through fractures in the rock). Not sure if that's the same case at Mt. Princeton though.
- Mark A Steiner
- Posts: 1071
- Joined: Mon Apr 14, 2008 9:38 pm
- Location: McKenzie County ND and Desert Hills AZ
East of Mt. Princeton, and north and east of Antero Junction in South Park are many surface expressions of volcanism including Black Mountain (11,656 feet near Hartsel), a source of the Thirty-Nine Mile volcanic field.
The hot springs at Pagosa have a more direct association with volcanism than the springs at Mt. Princeton, being close to the San Juan volcanic field, largest in Colorado, expressed by the mountains rising just to the north of the town with its massive lava flows originating near Creede.
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